Table of Contents
4.6.3.5.
Pin connection
9 & 12kW
A1
A2
A3
Frame
B1
B2
B3
B4
B5
B6
B7
B8
4.6.3.6.
An M6 stud is provided on the rear of the e-Brick housing to permit Protective Earth (PE)
bonding during installation. Note that the mains supply earth is through P5.
4.6.3.7.
P6: HMI (Master)
Pin connection
1
2
3
4
5
6
7
8
P6: Communications port (Slave, in)
Pin connection
1
2
3
4
5
6
7
8
GEW UV e-Brick installation and operating manual
P5: Power input
Signal name
22kW
A1
L1
B1
L2
C1
L3
Frame
PE
F1
F2
F3
Auxiliary_n/o
F4
Auxiliary_n/o_rtn
F5
Auxiliary_n/c
F6
Auxiliary_n/c_rtn
F7
Chiller_OK
F8
Chiller_OK_rtn
Protective Earth terminal
P6: Communication port (in)
Signal name (Master)
24V
0V
RS485A
RS485B
KEY
5V_control
N/C
RS485_rtn
Signal name (Slave)
RS485A
RS485B
E-stop
E-stop_rtn
N/C
N/C
N/C
RS485_rtn
Rating / connection
Mains supply input, for ratings see
Table 6
L1-L3 connections NOT SELV
'Volt free' auxiliary n/o contact
output. Contact rating 5A @
24Vdc / 120Vac
'Volt free' auxiliary n/c contact
output. Contact rating 5A @
24Vdc / 120Vac
'Volt free' contact input from chiller
Rating / connection
24V output to HMI
0V output to HMI
RS485 bus
RS485 bus
No connection
No connection
No connection
RS485 Screen
Rating / connection
RS485 bus || P2-1
RS485 bus || P2-2
'Volt free' contact input from E-stop
output on previous master / slave e-
Brick.
No connection
No connection
No connection
RS485 Screen
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